Hay gathering and trussing machine



May 22, 1934. A, M. JEANSON HAY GATHERING AND TRUSSING MACHINE Filed Jan. 3, 1930 3 Sheets-Sheet l o M W W ME My. 4 M,

May 22, 1934. A. M. JEANSON HAY GATHERING AND TRUSSING MACHINE Filed Jan. 3, 1950 3 Sheets-Sheet 2 lA/mvmR H. M. JEHNSON M w, 11 k w L J fi mm J an HFHW Mn m A TL 2.... 1 SMV I .lml M H@ J. m IJI l L. A -n r 7 ATTOR/YI) y 1934. A. M. JEANSON 1,959,676

HAY GATHERING AND TRUSSING MACHINE Filed Jan. 3, 1930 5 Sheets-Sheet 3 Fig.5

Patented May 22, 1934 UNITED STATES HAY GATHERING AND TRUSSING MACHINE Auguste Mari Jeanson, Etrelles, France Application January 3, 1930, Serial No. 418,183 In France January 9, 1929 4 Claims.

This invention relates to a hay gathering and trussing machine of that type which comprises a rake by means of which the hay on the ground is gathered and brought onto an elevator by which it is conveyed onto a settling table at the end of which it becomes bundled and tied by means of a needle and a fastening device prior to its being ejected from the machine.

Gathering and trussing machines of this type are known, namely the one described in the U. S. Patent No. 1,685,163 granted to me on July 31st, 1925.

One feature of this invention in connection with the type of gathering and trussing machine considered resides in the fact that, in) order to avoid the choking of the rake, the pegs pertaining to its lateral sections are hinged separately and individually and arranged in stepped relation to one another in the direction of travel of the rake.

Another feature of the invention consists in the fact that, in order to allow the prongs of the haysettling device to freely clear the hay so as to prevent same being carried away, a portion of the cam by which the pin of each prong is guided shows a sudden change in direction and clears the control roller of the prong, the lateral legs of which project rearwards sufficiently to cause the same to engage a plate or stop on the machine, so that the prong can never capsize in its travel but shall always retain the direction given to it by the driving chain.

A further characteristic of the invention is that in order to obtain uniformly tightened and round shaped bundles and also to avoid the elasticity of the hay interfering with the tightening of. the tie as the bundle becomes fastened, the hay is directed towards an oversized receptacle, then peripherally compressed to a round shape in which it is maintained independently of the action of the tie during the tieing and fastening operation, the tie becoming sensible to the action of the said elasticity only after the bundle is completely fastened and prior to its being finally ejected.

For this purpose there will preferably be arranged on the frame of the fastening means a semi-circular arm which, by the time the fastening is about to take place, will swing onto the back portion of the material to be trussed while the needle comes with its inside portion into embracing engagement with the front portion of the material. As the motion of the arm comes to an end and during the fastening stage the bundle is positively maintained by both these elements, after which, on the fastening being completed, it becomes ejected in known manner upon its disengagement from the arm and the needle, said disengagement being obtained mechanically or automatically or both at a time.

An embodiment of the improvements aimed at by this invention is shown by way of example in Q the drawings appended hereto, wherein:-

Figure 1 is an elevational view of a hay gathering and trussing machine of the type disclosed in the U. S. Patent No. 1,685,163 provided with the improvements of this invention;

Figure 2 is a top plan view of Fig. 1 whereas Figure 3 is a modification of the trussing device.

Fig. 4 shows, on an enlarged scale, the right end of the pressing device illustrated in Fig. 1, with the various positions of the teeth as they move forward under the action of the entraining chain indicated in dotted lines.

Fig. 5 is a plan view of Fig. 4, and

Fig. 6 is a modified form, in plan, of the construction shown in Figs. 4 and 5.

As shown in the drawings, the hay gathering and trussing machine comprises a rake A by which the hay on the ground is gathered and discharged onto an elevator B provided with prongs C by which it is fed to a settting device D which in turn directs it towards the fastening means E.

According to this invention, only the middle section or sections of the rake A is or are formed of pegs 2 rigidly interconnected by a common frame 3 arranged at right angles to the direction of travel of the machine, while the pegs 5 in the lateral sections 4 adapted to direct the hay towards the middle ones are hinged each for itself and arranged in stepped relation, i. e. offset with respect to one another in the direction of travel of the rake as shown in dotted lines at 6. The hinge pins 7 of these pegs may be coaxial or not. The points 8 of the pegs alone engage the ground according to the stepped arrangement just referred to.

As a result of this arrangement the pegs 5 being free will more readily follow all the unevenness.v of the ground, and their shanks 9 which are driven upwards immediately will forthwith drive the hay inwards, all the better as the said hay is lifted on one side only while the rest of it still remains on the ground.

Moreover, it will be appreciated that the prong 10 of the hay settling device is driven in the direction of the arrow 11 by the link 12 the hinge pin 13 of which pertains to a driving chain 14 which derives its movement from the Wheel 15 of the machine.

On the other hand, the hinge pin 16 of the prong 10 is guided by a cam 1'7 which, in this embodiment, is formed with two widely spaced rear portions 18, 19 in order to allow the prong 10 to freely disengage the hay by swinging about the pin 13 while, in order to prevent the prong 10 from tilting as same is lowered, which would subsequently preclude its normal operation, the prong 10 carries a finger 20 which comes into engagement with a plate 21 secured to the machine frame, whereby the prong 10 is held in its normal position until it re-engages the cam 1'7. As far as the fastening operation is concerned, it will be appreciated that the frame 22 of the fastening means has been modified so as to house a pin 23 upon which there is keyed a clamping arm 24 the opposite end. of which carries a 2- teeth segment gear 25, 26 and a roller 27. l

Combined with the said segment gear 25, 26 and integral with the member 28 carrying the ejecting arm 29 is a segment; gear 30 similar to the one just referred to and provided with two teeth 31, 32 and a limb 33 by which the final pressure is maintained. The arm 24 is brought back to its inoperative position by means of a returnspring 34 each time the fastening of a bundle is completed.

The inside 35 of the needle 36 has a shape which is as close to the semi-circle as possible.

37 in Fig. 2 indicates the slot through which the needle is adapted to pass, while 38 designates the shaft of the fastening device.

The hay is fed into the receptacle 39 by the prongs 10 moving in the direction shown by the arrow 40, while arrow 41 indicates the direction of rotation of the shaft 38 of the fastening means and arrows 42 and 43 indicate the reciprocating motion of the needle 36.

The system operates as follows:-'

As soon as the fastening device comes into operation in known manner, the arm 24 is swung down by the teeth 31, 32 until the roller 27 comes into engagement with the limb 33 of member 30 whereby it is held in position. The movement of the needle 36 continues until the portion 35 of thesame brings the bundle to round shape, upon which the knot is made by the fastening device. Then, the string is cut, the needle 35 is swung back, the arm 24 is released as soon as the roller 27 rides past the end of the limb 33, whereupon the said arm under the action of the return spring 34 clears the bundle which is thrown away by means of the ejector 29.

Fig. 3 shows that in order to obtain smaller bundles there may be added below the bundle an additional clamping arm 44 hinged at 47 and actuated by a cam 45 rigid with the needle 36 in such manner that both arms 24 and 44 together with the needle 36 will cooperate in maintaining as far as possible a round shape and at all times a tangent arrangement of the fastening device.

In Figs. 4 and 5, each entraining tooth 10 is made in a single piece with the cross-bar 12 and nose 20. The cross-bar 12 is pivoted on the entraining chain 14 at 13, and the axis 16 of the teeth is guided in cams 17, the two members of which open freely at the rear at 18 and 19 to permit the teeth 10 to separate from the entrained and piled hay.

The aim of the nose 20 of each tooth is to come into contact with shoe 21 when tooth 10 leaves the entrained hay in order to avoid tripping or, in other words, to prevent axis 16 from coming into contact with member 19 of the cam, which would result in pushing tooth 10 forward instead of entraining it.

The nose 20, coming into contact with shoe 21, serves to force tooth 10 to turn in a clockwise direction.

The difference between the construction shown in Figs. 4 and 5 and that illustrated in Fig. 6, is that in the former the entraining teeth 10 are independent whereas, in Fig. 6, they are all mounted on a single crank shaft, thus reducing the number of the guiding cams 17 to two.

I claim:-

1. A hay gathering and bundle tying machine comprising a rake for piling the hay on the ground, an elevator having claws for taking up the piled hay, a conveyor having teeth for receiving the hay from the elevator, means for pressing the hay upon the conveyor said means having pressing teeth, cross bars mounted for movement and adapted to actuate the pressing teeth, guides receiving the axes of said teeth, said guides spreading out rearwardly to allow the teeth to pivot freely around the cross bars, the teeth having flanges disposed opposite the cross bars, plates for limiting the movement of the teeth and for causing the teeth to take the course in the lower parts of the guides and under the action of the cross bars, means for binding and tying the pressed hay and means for easting the bundle from the machine.

2. A hay gathering and bundle tying machine comprising a rake for piling the hay on the ground, said rake having a middle section with teeth rigidly mounted and lateral sections with pivoted teeth mounted on a horizontal axis perpendicular to the longitudinal axis of the machine and located in front of the point of contact of th teeth with the ground, said points of contact lying on an oblique line from the front to the interior of the machine, an elevator for taking up the gathered hay, a conveyor for receiving the hay from the elevator, a presser having teeth for compressing the hay, means for freeing the teeth from the pressed hay, means for binding the means for tying the hay and operating alternately with the pressing means and means for casting the bundles from the machine.

3. A hay gathering and bundle tying machine 4 comprising a rake for piling the hay on the ground, said rake having a central section provided with pegs and lateral sections with hinged pegs and arranged in stepped relation to each other in the direction of travel of the machine, an elevator for receiving the hay from the gatherer, conveying a compressing means for the hay, a clamping arm, means for actuating said arm comprising a sector and an outer roller mounted on the frame of the fastening device, a segment gear with a limb in opposite relation thereto, said sector and limb being mounted upon the ejector and adapted to coast with the segment gear, a return spring for the ejector arm,

hay, a compressor, a semi-circular clamping arm rotating on an axis, a sector provided with a number of gear teeth, an outer roller on the frame of the fastening device, a limb rotating on an axis, gear teeth integral with the limb, a locking arm engaging said teeth, an ejector mounted on the axis of the limb and a withdrawal spring for locking said arm.

AUGUSTE MARI JEANSON. 

